Glass Mineral Wool - Earthwool Loft Roll 44


Pitched roofs at ceiling level


Glass Mineral Wool


Knauf Insulation Loft Rolls are non-combustible insulation rolls made from Glass Mineral Wool. They are manufactured using our unique bio-based binder, ECOSE® Technology, which offers better air quality and improved levels of comfort when handling our Loft Roll insulation.

Knauf Insulation Loft Rolls are designed specifically for use in cold roofs where lofts are insulated at ceiling level.

We offer a combi-cut Loft Roll product, which has partially cut perforations, providing the flexibility to be used between joists at either 400mm or 600mm centres or used un-split as a full-width roll.

We also offer a ready-cut Loft Roll which is fully cut and is designed to be used between joists at 600mm centres.

Knauf Insulation Loft Roll 44 has a thermal conductivity of 0.044 W/mK.


  • Excellent thermal performance.
  • Non-combustible A1 Euroclass Reaction to Fire classification
  • Lightweight quilt for ease of installation
  • Available as partially cut rolls for use with
    • timber joists at 400mm centres or,
    • timber joists at 600mm centres or,
    • unsplit as a full width roll.
  • Partially cut, shorter length rolls
  • Ready cut rolls for use between joists at 600mm centres



Thickness (mm)Length (mm)Width (mm)Thermal Conductivity (W/mK)R-Value (M²K/W)Area per Roll (m²)Euroclass Reaction to Fire ClassificationRoll TypeFacingArea per Pallet (M²)
100121801140 (2 x 570mm)0.0442.2513.885A1Ready-cutUnfaced333.245
100121801140 (2 x 570mm/3 x 380mm)0.0442.2513.885A1Combi-cutUnfaced333.245
10072801140 (2 x 570mm/3 x 380mm)0.0442.258.299A1Combi-cut Shorter lengthUnfaced331.968
15049001140 (2 x 570mm/3 x 380mm)0.0443.405.586A1Combi-cut Shorter lengthUnfaced223.440
15080501140 (2 x 570mm/3 x 380mm)0.0443.409.177A1Combi-cutUnfaced220.248
15080501140 (2 x 570mm)0.0443.409.177A1Ready-cutUnfaced220.248
17043001140 (2 x 570mm/3 x 380mm)0.0443.854.902A1Combi-cut Shorter lengthUnfaced196.080
17070301140 (2 x 570mm/3 x 380mm)0.0443.858.014A1Combi-cutUnfaced192.341
20034001140 (2 x 570mm/3 x 380mm)0.0444.503.876A1Combi-cut Shorter lengthUnfaced155.040
20052001140 (2 x 570mm/3 x 380mm)0.0444.505.928A1Combi-cutUnfaced142.272


Eurofins Gold
A1 Euroclass Fire Rating
Green Guide Rating A+
CE Marking
TÜV Nord

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